I see you will be releasing 2.9.1 soon. Any chance you can add this fix?

It's to allow a very fast transition from session to mixdown and back to
the session. This has more implications than shows on the surface...
like bouncing of tracks... "freezing" of effects... so it may be used a lot.

I know I can achieve this by just rebuilding the whole chainsetup to
create the mixdown, then rebuilding the chainsetup when the mixdown is
done. But it would be a shame to take what is already a lightning fast
mixdown process and have the cumbersome build-up before and after the
mixdown, as opposed to just removing/attaching an audio object from a
chainsetup.

btw... wow... when non-realtime audio inputs are sent to non-realtime
audio outputs, it processes very fast... nice...